Ever bought a pair of shoes that you thought were in your size but after putting them on and walking around in them for a while, notice that the back part started to rub really badly on your heel? disturbing and painful isn't it? Trying to put a band-aid on the heel never seems to work because it slides right off. Of course there are some products out that are supposed to be for the heel but I haven't heard of one yet that really prevents this problem from happening extremely well. It's time for scientist to get in the laboratory and figure the best way to solve this small but big issue and it's also time for more shoe makers to test more the quality of the shoes they make. The less foot discomfort, the better.